What do the 1979 nuclear accident at Three Mile Island, the 1986 nuclear meltdown at Chernobyl, the Exxon Valdez oil tanker grounding and the explosion of the space shuttle Challenger all have in common (besides being major catastrophes that cost millions and took lives)? Individuals who played a critical role in what went wrong were sleep deprived at the time of each accident. There is also a link between lack of sleep and medical errors in hospitals. The Institute of Medicine reports that over a million injuries and 50,000 to 100,000 deaths occur each year from preventable medical errors, many of which are believed to be attributed to insufficient sleep. Likewise, the National Highway Traffic Safety Administration estimates that 100,000 police-reported crashes in the U.S. annually are the direct result of driver fatigue. Also, the National Transportation Safety Board estimates that 70% of commercial aviation fatal accidents are related to human error and that operating crew fatigue is responsible for 15-20% of the overall accident rate.
While employee fatigue may not seem like a major concern for the average business, employees who do not get enough sleep — whether for just one night or over the course of weeks to months or on a regular basis — can significantly worsen productivity, work quality, customer service, and safety. Employee sleep deprivation can negatively impact mood, ability to focus, and ability to access higher-level cognitive functions. Sleep-deprived employees are less productive, creative, efficient, effective and engaging.
But just how much does lack of sleep affect a person’s productivity and mental ability to function? Continue reading





